Hakka proverbs are the essence of Hakka and are a treasure of experience and wisdom. Proverbs reflecting wisdom are called "philosophical proverbs," which extract the abstract truth from specific things through metaphors. This study selected philosophical proverbs comprising two sentences and explored the relationship between specific things and the metaphorical abstract truth, rendering the profound philosophy easy to understand. Discussions about Hakka proverbs are generally limited to the semantic level; few linguists have discussed the process of how truth is generated and what characteristics of Hakka proverbs are formed through metaphors. This study used the cognitive metaphor theory developed by Lakoff and Johnson (1980) to classify the ontological metaphors in Hakka proverbs into "people metaphors," "animal metaphors," "plant metaphors," and "food metaphors." The truth generation process and the distinctive culture that the proverbs reflect are examined.